Industrial Injection PDM-MS-2328HC H Series Race Main Bearings Standard .025 Coated

The Industrial Injection PDM-MS-2328HC H-Series coated main bearings are engineered for 1989-2018 Cummins 5.9L and 6.7L engines, featuring tri-metal race design with enlarged chamfers, high crush, and a flanged thrust bearing. These bearings were developed primarily for use in NASCAR-type racing but are suitable for all types of competition engines.

Performance Coating Technology:

Built using proven MAHLE/Clevite race geometry with a performance coating for improved scuff resistance and oil control in high load, high RPM builds. The special coating contains moly and other ingredients that retain oil rather than repel it, and was developed for race engines but is also applied to street and daily-use vehicles to help yield more durable engines. The biggest benefit of coated bearings is preventing damage during cold starts and events where oil starvation is evident.

Key Features:

• Medium level of eccentricity with high crush design
• Hardened steel back with thin overlay on rod bearings
• Enlarged chamfers for greater crankshaft fillet clearance
• Manufactured without flash plating for better seating
• Complete set includes upper flanged thrust bearing along with main shells
• Standard .025 clearance specification

Ideal for high-power street and competition builds, these bearings deliver race-proven durability for demanding Cummins applications.